Set just before Christmas, the action-packed episode features festively-dressed criminals (Reindeer mask-clad baddies, anyone?), a makeshift investigation against Dan (Dave Annable), and a school Christmas event complete with a piano performance.

In a crucial scene, Liam (Keegan Allen) fesses up to his brother about the police report he prematurely filed against Dan. Let's hope the hiccup won't backfire down the line.